Master of Public Health - MPH / No abstract available. / South Africa

A computer-based method for determining the orientation of planar geological structures from remotely sensed images, utilizing digital geological images and digital elevation models (DEMs), is developed and assessed. The method relies on operator skill and experience to recognize geological structure traces on images, and then employs software routines (GEOSTRUC©) to calculate the orientation of selected structures. The operator selects three points on the trace of a planar geological feature as seen on a digital geological image that is co registered with a DEM of the same area. The orientation of the plane that contains the three points is determined using vector algebra equations. The program generates an ASCII data file which contains the orientation data as well as the geographical location of the measurements. This ASCII file can then be utilized in further analysis of the orientation data. The software development kit (SDK) for TNTmips v5.00, from MicroImages Inc. and operating in the X Windows environment, was employed to construct the software. The Watcom C\C++ Development Environment was used to generate the executable program, GEOSTRUC© . GEOSTRUC© was tested in two case studies. The case studies utilized digital data derived from the use of different techniques and from different sources which varied in scale and resolution. This was done to illustrate the versatility of the program and its application to a wide range of data types. On the whole, the results obtained using the GEOSTRUC© analyses compare favourably to field data from each test area. Use of the method to determine the orientation of axial planes in the case study revealed the usefulness of the method as a powerful analytic tool for use on a macroscopic scale. The method should not he applied in area with low variation in relief as the method proved to be less accurate in these areas. Advancements in imaging technology will serve to create images with better resolution, which will, in turn, improve the overall accuracy of the method.

A Personal Health Record (PHR) is an electronic record of a patient’s health-related information that is managed by the patient. The patient can give access to other parties, such as healthcare providers and family members, as they see fit. These parties can use the information in emergency situations, in order to help improve the patient’s healthcare. PHRs have an important role to play in ensuring that a patient’s complete health history is available to his healthcare providers at the point of care. This is especially true in South Africa, where the majority of healthcare organizations still rely on paper-based methods of record-keeping. Research indicates that physicians play an important role in encouraging the adoption of PHRs amongst patients. Whilst various studies have focused on the perceptions of South African citizens towards PHRs, to date no research has focused on the perceptions of South African physicians. Considering the importance of physicians in encouraging the adoption of PHRs, the problem being addressed by this research project thus relates to the lack of information relating to the perceptions of South African physicians of PHRs. Physicians with private practices at private hospitals in Port Elizabeth, South Africa were surveyed in order to determine their perceptions towards PHRs. Results indicate perceptions regarding benefits to the physician and the patient, as well as concerns to the physician and the patient. The levels of trust in various potential PHR providers and the potential uses of a PHR for the physician were also explored. The results of the survey were compared with the results of relevant international literature in order to describe the perceptions of physicians towards PHRs.

The main purpose of this research is to investigate the Information Architecture (IA) of government web sites in Southern Africa. The government web sites of Mozambique and South Africa were selected for the purpose of this research. A further aim of this research was to derive a model for the IA of government web sites. The model was based on IA components and guidelines as well as on web site components and E-government requirements. The IA guidelines in the model were derived from general design guidelines and guidelines for government web sites. The IA guidelines in the proposed model were used to conduct an analytical and empirical evaluation of the selected sites. The selection of the sites was based on similarities in the Information and Communication Technology (ICT) strategies and policies, the annual Internet growth rates, the Internet user profiles and the Egovernment initiatives in both countries. Differences between the sites also contributed to their selection. Mozambique is one of the least developed countries in the world, while South Africa is one of the most developed countries in Africa. Heuristic evaluation was used for the analytical evaluation while questionnaires and user testing were used for the empirical evaluation. Some of the usability problems identified in the heuristic evaluation, such as incorrect organisation of information and navigation issues, were also identified in the empirical evaluation, confirming to the existence of these usability problems. The results of this research show that the IA of government web sites has an impact on user performance and satisfaction and that the proposed model can be used to design and evaluate the IA of government web sites in Southern Africa.

Since the early 20th century, the view has developed that high quality health care can be delivered only when all the pertinent data about the health of a patient is available to the clinician. Various types of health records have emerged to serve the needs of healthcare providers and more recently, patients or consumers. These health records include, but are not limited to, Personal Health Records, Electronic Heath Records, Electronic Medical Records and Payer-Based Health Records. Payer-Based Health Records emerged to serve the needs of medical aids or health care plans. Electronic Medical Records and Electronic Health Records were targeted at the healthcare provider market, whereas a gap developed in the patient market. Personal Health Records were developed to address the patient market, but adoption was slow at first. The success of online social networking reignited the flame that Personal Health Records needed and online consumer-based Personal Health Records were developed. Despite all the various types of health records, there still seems to be a lack of meaningful use of personal health records in modern society. The purpose of this dissertation is to propose a framework for Personal Health Records in online social networking, to address the issue of a lack of a central, accessible repository for health records. In order for a Personal Health Record to serve this need it has to be of meaningful use. The capability of a PHR to be of meaningful use is core to this research. In order to determine whether a Personal Health Record is of meaningful use, a tool is developed to evaluate Personal Health Records. This evaluation tool takes into account all the attributes that a Personal Health Record which is of meaningful use should comprise of. Suitable ratings are allocated to enable measuring of each attribute. A model is compiled to facilitate the selection of six Personal Health Records to be evaluated. One of these six Personal Health Records acts as a pilot site to test the evaluation tool in order to determine the tool’s utility and effect improvements. The other five Personal Health Records are then evaluated to measure their adherence to the attributes of meaningful use. These findings, together with a literature study on the various types of health records and the evaluation tool, inform the building blocks used to present the framework. It is hoped that the framework for Personal Health Records in online social networking proposed in this research, may be of benefit to provide clear guidance for the achievement of a central or integrated, accessible repository for health records through the meaningful use of Personal Health Records.

Mobile computing devices are capable of changing how healthcare is delivered in the future, since they aim to merge and integrate all services into one device that is versatile, customisable, and portable. The aim of this study was to explore and describe the experiences of professional nurses with regard to accessing information at the point-of-care of the patient, in order to develop guidelines that could assist other professional nurses with implementing the mobile computing device for accessing information at the point-of-care of patients. To achieve the purpose of the study, a qualitative, explorative, descriptive, and contextual design was used to conduct this research – to gain an understanding of how the professional nurses experienced accessing information at the point-of-care via mobile computing devices. The study was conducted among the professional nurses employed at the public hospital, who were trained and provided with the mobile computing device for accessing information at the point-of-care for more than two years. In-depth interviewing was conducted to obtain the data. Data analysis was done using Tesch‘s method to make sense out of text and data. Four themes were identified, namely, the professional nurses‘ expression of various experiences regarding the training received; the need for support in implementing the mobile computing device; the accessing of information at the point-of-care as beneficial for educational purposes; and the accessing of information at the point-of-care as beneficial to patient care. Two main guidelines were developed. The study concludes with recommendations made with regard to the areas of nursing practice, education and research. Throughout the study, the researcher abided by the ethical considerations. The aspects of trustworthiness implemented in this study, included dependability, credibility, transferability and confirmability (Holloway & Wheeler, 2010:298).

The alignment of information systems with organisational objectives and strategies is crucial to the efficient performance of any organisation. There is a growing focus on the effectiveness of management and evidence-based decision making in public institutions in South Africa. The Eastern Cape Department of Social Development and Special Programmes (ECDSD) implemented a Social Development Information Management System (SDIMS), which is an information system that supports various functions performed by the Department. While SDMIS provides large amounts of valuable information, it still has much ground to cover in terms of fully meeting the Department’s information needs. There is an increasing demand for information to inform decision making with regards to priority setting, resource usage, monitoring the impact of the Department’s intervention programmes, and monitoring the progress of the Department’s strategic goals. The main purpose of this study was to analyse the extent to which MIS is utilised in the Eastern Cape Department of Social Development and Special Programmes and to make recommendations for the alignment of MIS with organisational objectives in order to achieve these objectives. Furthermore, the study intends to investigate the extent to which the information needs of managers are considered in designing and providing information. The objectives of the study are, firstly, to analyse the current state of MIS utilisation in the Department. Secondly, to evaluate the utilisation of information provided by the MIS unit for decision making, and, thirdly, to make recommendations on how to improve MIS utilisation. Qualitative approach techniques were utilised to collect data for the study. Research questionnaires were distributed to thirty respondents. Semi-structured interviews were conducted with seven interviewees out of a target number of ten. The response rate was 68 percent and this was considered as adequate for scientific analysis and reporting. The study produced the following research findings:  Mainly, the MIS users believe that they understand MIS and its capabilities, and have received training on how to use the system.  The quality of information provided by MIS is mostly complete and largely meets user requirements and expectations.  MIS information is for the most part accurate and comprehensive enough to expedite decision-making.  Although MIS largely meets user requirements and expectations in terms of completeness, accuracy and reliability, the study indicates that it still falls short in integrating information from other sources, which include government transversal systems such as the Basic Accounting System (BAS) and the Personnel Salary System (PERSAL).  MIS information is mostly available and easy to access, but occasionally not timely. This is mostly caused by the unavailability of real-time information synchronisation between MIS and other government systems. In light of the above findings, the researcher recommends that: There is still more to be done in order to continuously inform and train users on the latest MIS capability developments in the form of awareness workshops, contact and remote support, and through internal news bulletins.  The Department needs to work with other government entities that are custodians of transversal systems in finding a solution to the creation of real-time integration of MIS with other external sources of information. Even though the level of MIS utilisation is not too much of a concern, the Department needs to ensure that users of information are kept up to date with new MIS reporting capabilities so as not to underutilise the system. It is therefore recommended that the Department ensure that information is more often reviewed and reports are customised to meet the ever-changing needs of the Department.

This dissertation proposes the development of an identification verification model that can be implemented within the context of the Eastern Cape, South Africa in order to ensure that vulnerable children are provided with the requisite care that they deserve from the state. The dissertation provides both a developed and developing world perspective on the identification verification needs of vulnerable children by providing an overview of relevant South African policy with regard to caring for vulnerable children and presenting an international perspective with specific reference to current legislative developments in the United Kingdom and Malaysia. Chapter 1 provides a motivation for a framework to be used for the identification verification of children in developing countries by emphasising that the provision of basic social services to children is an urgent requirement for poverty eradication and is a necessity as documented in the United Nations Convention on the Rights of the Child. A background to the needs of vulnerable children in South Africa is given and the scope, limitations and research methodology used in the dissertation is presented. Chapter 2 provides an overview of child related policy in the South African Context both from a National Government and Eastern Cape perspective. Although extensive progress has been made in the development of policies aimed at protecting vulnerable children, the practical implementation of these policies has been hampered by numerous issues including the lack of coordination between key entities. Chapter 3 provides an introduction to several noteworthy international developments with regard to the identity verification of vulnerable children. Lessons learnt from identity verification systems from the United Kingdom and Malaysia are analyzed for applicability to the South African context. In addition to this, the use of biometric technology in identity verification systems and a number of biometric identification methodologies available are discussed. Chapter 4 proposes the development and implementation of a biometric identity verification model in the Eastern Cape Province of South Africa based on lessons learnt from the assessment of South African policy and international best practice. The system should be piloted in the Eastern Cape and, if successful, be implemented throughout South Africa with a possible view to future implementation on the African continent. The scope of the system, the technological requirements and a high level implementation plan together with the need to further research certain key aspects e.g. the cost implications are discussed. It is clear that the development of such a model and the implementation of such a system will ensure that vulnerable children are provided with the requisite care that they are constitutionally entitled to. Significant follow up research is required during the development of the model to ensure that all aspects of the model are well documented and during the implementation of the system to ensure that the requirements of the users both within the government and the general public are met.

This thesis on the development of a land use databank for community and regional planning in the Philippines has two main objectives. The first is to show that a planning databank is an indispensable component in the present day urban and regional planning process. The second is to propose how the databank concepts may be introduced in the Philippine planning approach to community and regional development. In attempting to achieve the first objective, Chapters I to III of the thesis focused on the problem of lack of accurate, adequate and relevant planning data; on the various concepts about land and land use and their relevance to the establishment of a land use databank; and on the databank case studies to find out how a planning databank is actually established, maintained and used for planning purposes. Present day urban and regional analyses have continuously relied on vast amounts of data. However, because the data needed for such analyses were not organized, because the vast files of data from various sources lacked comparability for adequate analysis, and because data were not updated for current usage, planning research objectives were rarely realized. The planning databank is a fairly recent tool to remedy the problem of lack of accurate, relevant and adequate planning data. A planning databank may be defined as a "system which employs an electronic computing facility to develop information from a relevant set of data derived from various sources", or it may mean simply as "an organized method of using data for a specific purpose." Since the planning databank concept is still new, even by American planning experience, introducing this concept to the Philippines would be limited by many "cultural barriers." Chapter IV attempted to single out these "cultural barriers". The beliefs among the citizen that data being collected will be used against them, as for example, increasing their taxes; inter-agency suspicion among the possible sources of data; and lack of technical skills considered adequate to operate a planning databank, were possible hindrances to the establishment of a databank in the Philippines. Another is lack of awareness in the Philippines for physical planning. In view of the "cultural barriers", it was decided that a more realistic approach to the establishment of a land use databank in the Philippines should include the following assumptions: First, that there exists an awareness among the national, provincial and local officials regarding the need for physical planning in the community or region. If the condition prevails, then the databank concept may be introduced on a cooperative basis between the Country's Regional Development Authorities and the regional communities. Second, that there is national government financial assistance for acquiring the needed electronic data processing equipment and for maintaining the databank's major operations. Without the financial assistance from the national government, the financial requirements for the system may be excessive for the Regional Authorities to bear. The proposed databank followed the enumerated sequence of computer-oriented activities: (a) identification of generalized categories of data considered essential for effective community and regional planning; (b) inventory of data sources and data; (c) development of information record format and code; (d) data collection and data collection priorities; and (e) data file creation, maintenance and retrieval. The proposed databank also include the necessary administrative arrangements, as well as research and decision-making management scheme. The planning databank is a long-range solution to the problem of lack of reliable and adequate planning data. The major activities involved, such as data collection, data file creation and maintenance, and data retrieval must be conceived as a continuing process. / Applied Science, Faculty of / Community and Regional Planning (SCARP), School of / Graduate

This dissertation adopts an interdisciplinary approach to the field of law and artificial intelligence. It argues that the conceptual structuring of legal knowledge within an appropriate theoretical framework is of primary importance when building knowledge-based systems. While technical considerations also play a role, they must take second place to an in-depth understanding of the law. Two alternative methods of structuring legal knowledge in very different domains are used to explore the thesis. A deep-structure approach is used on nervous shock, a rather obscure area of the law of negligence. A script-based method is applied to impaired driving, a well-known part of the criminal law. A knowledge-based system is implemented in each area. The two systems, Nervous Shock Advisor (NSA) and Impaired Driving Advisor (IDA), and the methodologies they embody, are described and contrasted. In light of the work undertaken, consideration is given to the feasibility of lawyers without much technical knowledge using general-purpose tools to build knowledge-based systems for themselves. / Graduate and Postdoctoral Studies / Graduate